Id check to see if it even has 10M enabled and FL-1 removed or bypassed.
Carl
KM1H
----- Original Message -----
From: "Tim Kass" <k8wbl@yahoo.com>
To: <amps@contesting.com>
Sent: Thursday, September 06, 2012 8:57 AM
Subject: [Amps] Dentron 160-10L 10 meter issue
Hey Group,
Well, finally got around to completing the project I bought a year ago...the
amp had blown diodes. I replaced all the diodes, put in a circuit board for
the new caps, upgraded the 811A's to new 572B's, put in a 6" inch fan, new
circuit breaker and new, heavier, RF choke with suppressor kit (Ameritrons
kit) ..works well except when I tried it on 10 meters last night...SWR
infinite....was this one of those amps that Dentron put in the block for the
10 meter band so the Childrens Band folks dont try to use it? Seems like its
a dead short...simple to open it back up again but also thought maybe it
could be parasitics, etc...the manual states in capital letters to have the
amp load and tune positions set to their specifications before attempting to
transmit. I know Dentrons had issues with parasitics, reason for the new RF
choke and top mounted suppressor kit... any thoughts? Carl? Just like to
hear any suggestions or experiences before I open it
back up again ... also..case is removed at it was shorting out to the top
of the case on 20 meters, poor Dentron design to have any metal THAT close
to the top of the main coil...probably what blew it up in the first
place..guy told me he was operating it on 20 meters CW when it blew.
73, Tim K8WBL
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